| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package javax.mail.internet; |
| |
| // http://www.faqs.org/rfcs/rfc2183.html |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class ContentDisposition { |
| private String _disposition; |
| private ParameterList _list; |
| |
| public ContentDisposition() { |
| setDisposition(null); |
| setParameterList(null); |
| } |
| |
| public ContentDisposition(final String disposition) throws ParseException { |
| // get a token parser for the type information |
| final HeaderTokenizer tokenizer = new HeaderTokenizer(disposition, HeaderTokenizer.MIME); |
| |
| // get the first token, which must be an ATOM |
| final HeaderTokenizer.Token token = tokenizer.next(); |
| if (token.getType() != HeaderTokenizer.Token.ATOM) { |
| throw new ParseException("Invalid content disposition"); |
| } |
| |
| _disposition = token.getValue(); |
| |
| // the remainder is parameters, which ParameterList will take care of parsing. |
| final String remainder = tokenizer.getRemainder(); |
| if (remainder != null) { |
| _list = new ParameterList(remainder); |
| } |
| } |
| |
| public ContentDisposition(final String disposition, final ParameterList list) { |
| setDisposition(disposition); |
| setParameterList(list); |
| } |
| |
| public String getDisposition() { |
| return _disposition; |
| } |
| |
| public String getParameter(final String name) { |
| if (_list == null) { |
| return null; |
| } else { |
| return _list.get(name); |
| } |
| } |
| |
| public ParameterList getParameterList() { |
| return _list; |
| } |
| |
| public void setDisposition(final String string) { |
| _disposition = string; |
| } |
| |
| public void setParameter(final String name, final String value) { |
| if (_list == null) { |
| _list = new ParameterList(); |
| } |
| _list.set(name, value); |
| } |
| |
| public void setParameterList(final ParameterList list) { |
| if (list == null) { |
| _list = new ParameterList(); |
| } else { |
| _list = list; |
| } |
| } |
| |
| /** |
| * Retrieve a RFC2045 style string representation of |
| * this ContentDisposition. Returns an empty string if |
| * the conversion failed. |
| * |
| * @return RFC2045 style string |
| * @since JavaMail 1.2 |
| */ |
| @Override |
| public String toString() { |
| |
| /* Since JavaMail 1.5: |
| The general contract of Object.toString is that it never returns null. |
| The toString methods of ContentType and ContentDisposition were defined |
| to return null in certain error cases. Given the general toString contract |
| it seems unlikely that anyone ever depended on these special cases, and |
| it would be more useful for these classes to obey the general contract. |
| These methods have been changed to return an empty string in these error |
| cases. |
| */ |
| |
| |
| // it is possible we might have a parameter list, but this is meaningless if |
| // there is no disposition string. Return a failure. |
| if (_disposition == null) { |
| return ""; |
| } |
| |
| |
| // no parameter list? Just return the disposition string |
| if (_list == null) { |
| return _disposition; |
| } |
| |
| // format this for use on a Content-Disposition header, which means we need to |
| // account for the length of the header part too. |
| return _disposition + _list.toString("Content-Disposition".length() + _disposition.length()); |
| } |
| } |